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Numerical simulations of pyrolysis of charring and non-charring materials using an enthalpy-based model

Shivanand Wasan UGent, Pieter Rauwoens UGent, Jan Vierendeels UGent and Bart Merci UGent (2009) Mediterranean Combustion Symposium, 6th, Proceedings.
abstract
The present work focuses on the application of a pyrolysis model, with enthalpy as basic variable, in numerical simulations of pyrolysis of dry and wet charring materials, as well as non-charring materials. In case of wet charring materials, the moisture first flows out after evaporation, leaving dry virgin solid material. This material then further heats up and finally generates a mass flow rate of combustible volatiles during the pyrolysis process. Evaporation and pyrolysis, possibly occurring at the same time, are assumed to take place in infinitely thin fronts. Pyrolysis is thus modelled as an infinitely fast, irreversible endothermic process at the 'pyrolysis temperature' (Tpyr) and as such, all kinetics are ignored. The cases considered are one-dimensional in nature, in order to focus on the principal model performance. The temperature distribution inside the material, along with the evaporation and pyrolysis front positions, are related to the distribution of enthalpy. A piecewise linear temperature field representation is adopted. Pyrolysis of non-charring materials is modelled with the same enthalpy based model.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
simulations, pyrolysis, enthalpy model
in
Mediterranean Combustion Symposium, 6th, Proceedings
pages
11 pages
conference name
6th Mediterranean Combustion Symposium
conference location
Ajaccio, Corsica, France
conference start
2009-06-07
conference end
2009-06-11
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
708880
handle
http://hdl.handle.net/1854/LU-708880
date created
2009-06-25 15:41:48
date last changed
2009-11-12 16:56:45
@inproceedings{708880,
  abstract     = {The present work focuses on the application of a pyrolysis model, with enthalpy as basic variable, in numerical simulations of pyrolysis of dry and wet charring materials, as well as non-charring materials. In case of wet charring materials, the moisture first flows out after evaporation, leaving dry virgin solid material. This material then further heats up and finally generates a mass flow rate of combustible volatiles during the pyrolysis process. Evaporation and pyrolysis, possibly occurring at the same time, are assumed to take place in infinitely thin fronts. Pyrolysis is thus modelled as an infinitely fast, irreversible endothermic process at the 'pyrolysis temperature' (Tpyr) and as such, all kinetics are ignored. The cases considered are one-dimensional in nature, in order to focus on the principal model performance. The temperature distribution inside the material, along with the evaporation and pyrolysis front positions, are related to the distribution of enthalpy. A piecewise linear temperature field representation is adopted. Pyrolysis of non-charring materials is modelled with the same enthalpy based model.},
  author       = {Wasan, Shivanand and Rauwoens, Pieter and Vierendeels, Jan and Merci, Bart},
  booktitle    = {Mediterranean Combustion Symposium, 6th, Proceedings},
  keyword      = {simulations,pyrolysis,enthalpy model},
  language     = {eng},
  location     = {Ajaccio, Corsica, France},
  pages        = {11},
  title        = {Numerical simulations of pyrolysis of charring and non-charring materials using an enthalpy-based model},
  year         = {2009},
}

Chicago
Wasan, Shivanand, Pieter Rauwoens, Jan Vierendeels, and Bart Merci. 2009. “Numerical Simulations of Pyrolysis of Charring and Non-charring Materials Using an Enthalpy-based Model.” In Mediterranean Combustion Symposium, 6th, Proceedings.
APA
Wasan, S., Rauwoens, P., Vierendeels, J., & Merci, B. (2009). Numerical simulations of pyrolysis of charring and non-charring materials using an enthalpy-based model. Mediterranean Combustion Symposium, 6th, Proceedings. Presented at the 6th Mediterranean Combustion Symposium.
Vancouver
1.
Wasan S, Rauwoens P, Vierendeels J, Merci B. Numerical simulations of pyrolysis of charring and non-charring materials using an enthalpy-based model. Mediterranean Combustion Symposium, 6th, Proceedings. 2009.
MLA
Wasan, Shivanand, Pieter Rauwoens, Jan Vierendeels, et al. “Numerical Simulations of Pyrolysis of Charring and Non-charring Materials Using an Enthalpy-based Model.” Mediterranean Combustion Symposium, 6th, Proceedings. 2009. Print.